It’s possible to appeal using the EU report form (I just worded it wrong, sorry), one of my friends did this and he got unbanned, despite it being more than 30 days/6 months.
When I first made my appeal, it took almost a whole month to get a response (denied), and it’s advised not to send tickets about the same thing to Roblox. Pheedy was unbanned a few months ago, and he got unbanned because of a name reset, the new account “Pheedy” is banned as a result, but the original Pheedy account was unbanned. Sure, this may be an error by Roblox, but it shows that Roblox can reinstate any account whenever they want, even past 30 days.
What you said about the support agents receiving this policy is probably true. I still find it ridiculous as my experience was reviewed 3 YEARS LATER after it had been moderated, it was insulting when they told me to recreate the experience (after already developing it for 4 years).
There’s a similar post to mine, even when theirs was within 30 days , they still reviewed the experience after 3 years, if they can reinstate an experience after 3 years then they can also do that with my account. Now whenever I send a ticket about this, they said it wasn’t moderated. This user had gotten terminated, as well as their game moderated. Roblox reviewed the situation and reinstated their experience but not their account, when they told Roblox about it, their account got reinstated.